16970121

素因数分解:

$3^3\times 7^2\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 29767680

約数和(自身を除く): 12797559

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 101, 127, 147, 189, 303, 381, 441, 707, 889, 909, 1143, 1323, 2121, 2667, 2727, 3429, 4949, 6223, 6363, 8001, 12827, 14847, 18669, 19089, 24003, 38481, 44541, 56007, 89789, 115443, 133623, 168021, 269367, 346329, 628523, 808101, 1885569, 2424303, 5656707, 16970121]

約数ペア:

[(1, 16970121), (3, 5656707), (7, 2424303), (9, 1885569), (21, 808101), (27, 628523), (49, 346329), (63, 269367), (101, 168021), (127, 133623), (147, 115443), (189, 89789), (303, 56007), (381, 44541), (441, 38481), (707, 24003), (889, 19089), (909, 18669), (1143, 14847), (1323, 12827), (2121, 8001), (2667, 6363), (2727, 6223), (3429, 4949)]